Your removed and added lines will be sent to Anthropic using your API key. The text leaves your browser. Don't include anything you wouldn't share with them.
AI Explain — Settings
BYOK. Key stays in your browser. Diff content is sent to the provider you pick when you click Explain.
No key set
Spot the difference. Keep your secrets.
Paste two texts. See what changed. Nothing ever leaves your browser — no upload, no account, no tracking.